Van Maldergem syndrome 1

A Van Maldergem syndrome that has_material_basis_in homozygous mutation in the DCHS1 gene on chromosome 11p15.

Van Maldergem syndrome 2

A Van Malergem syndrome that has_material_basis_in homozygous or compound heterozygous mutation in the FAT4 gene on chromosome 4q28.

Brown-Vialetto-Van Laere syndrome 1

A Brown-Vialetto-Van Laere syndrome that is characterized by progressive bulbar palsy with sensorineural deafness that has_material_basis_in homozygous or compound heterozygous mutation in the C20ORF54 gene (SLC52A3) on chromosome 20p13.

Charcot-Marie-Tooth disease intermediate type

A Charcot-Marie-Tooth disease characterized by motor conduction velocities above and below 38 m/s.

selective IgM deficiency disease

A selective immunoglobulin deficiency disease thatis a dysgammaglobulinemia resulting from decreased levels of immunoglobulin M (IgM) production to roduction of other antibodies.

Brown-Vialetto-Van Laere syndrome 2

A Brown-Vialetto-Van Laere syndrome that is characterized by early childhood onset of sensorineural deafness, bulbar dysfunction, and severe diffuse muscle weakness and wasting of the upper and lower limbs and axial muscles, resulting in respiratory insufficiency and that has_material_basis_in homozygous or compound heterozygous mutation in the SLC52A2 gene on chromosome 8q24.

primary localized cutaneous amyloidosis 1

A primary cutaneous amyloidosis that has_material_basis_in heterozygous mutation in the gene encoding oncostatin M receptor-beta (OSMR) on chromosome 5p13.

indolent plasma cell myeloma

A multiple myeloma that is characterized by M protein in serum and/or urine and evidence of organ damage related the plasma cell neoplasm.

lymphoplasmacytic lymphoma

A B-cell lymphoma characterized by the accumulation of monoclonal cells in the bone marrow and peripheral lymphoid tissues, and associated with the production of serum immunoglobulin M (IgM) monoclonal protein.

CD40 ligand deficiency

A combined T cell and B cell immunodeficiency that is a X-linked immunodeficiency with hyperimmunoglobulin M (XHIM) affecting isotype switching and is caused by the absence of CD40 ligand which is normally expressed on activated CD4+ T cells. Individuals with this mutation are unable to switch from IgM to IgG, IgA and IgE.